Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Ronald P. Winfield, MD

Individual provider Psychiatry Physician · NPI 1679554927

Ronald P. Winfield, MD is a Psychiatry in North Chelmsford, Massachusetts. Graduated from Harvard Medical School in 1973, 53 years ago. Practices with Greater Lowell Psychiatric Associates, LLC, a 6-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
53
Trained at
Harvard Medical School
Licensed in
MA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

73 Princeton St Ste 203
North Chelmsford, MA 01863-1559
Phone: (978) 256-6579
Fax: (978) 256-1943
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 36859 (MA)

Record details

NPI number1679554927
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 11, 2005
Last updated in NPPESMay 18, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1973 (53 years in practice)
Group practice Greater Lowell Psychiatric Associates, Llc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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